MY148460A - Production of water-absorbent resins - Google Patents

Production of water-absorbent resins

Info

Publication number
MY148460A
MY148460A MYPI2010000522A MYPI20100522A MY148460A MY 148460 A MY148460 A MY 148460A MY PI2010000522 A MYPI2010000522 A MY PI2010000522A MY PI20100522 A MYPI20100522 A MY PI20100522A MY 148460 A MY148460 A MY 148460A
Authority
MY
Malaysia
Prior art keywords
acrylic acid
aqueous
acid solution
water
production site
Prior art date
Application number
MYPI2010000522A
Inventor
Funk Ruediger
Heide Wilfried
Weismantel Matthias
Hammon Ulrich
Bennet Andrea Karen
Original Assignee
Basf Se
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Basf Se filed Critical Basf Se
Publication of MY148460A publication Critical patent/MY148460A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/04—Acids; Metal salts or ammonium salts thereof
    • C08F220/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Polymerisation Methods In General (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

THE INVENTION RELATES TO A METHOD FOR PRODUCING WATER-ABSORBENT RESINS, WHEREIN A) ACRYLIC ACID IS PRODUCED AT AN ACRYLIC ACID PRODUCTION SITE, B) THE PRODUCED ACRYLIC ACID IS DISSOLVED IN WATER AT THE ACRYLIC ACID PRODUCTION SITE, THUS AN AQUEOUS ACRYLIC ACID SOLUTION IS OBTAINED, C) THE ACRYLIC ACID SOLUTION IS FED INTO A PIPELINE AT THE ACRYLIC ACID PRODUCTION SITE AND IS TRANSPORTED THROUGH THE PIPELINE TO AN ACRYLIC ACID PROCESSING SITE D) THE AQUEOUS ACRYLIC ACID SOLUTION UNDERGOES A RADICAL POLYMERIZATION AT THE ACRYLIC ACID PROCESSING SITE. SAID METHOD GUARANTEES A SAVE TRANSPORT OF THE HIGHLY REACTIVE ACRYLIC ACID. A THREAT CAUSED BY EARLY POLYMERIZATION, AS WITH PURE ACRYLIC ACID, IS NOT POSSIBLE, AS THE ACRYLIC ACID IS 'DILUTED' DUE TO THE AQUEOUS SOLVENT AND THE SPECIFIC THERMAL CAPACITY OR THE EVAPORATION ENTHALPY OF THE WATER LIMIT THE MAXIMUM TEMPERATURE INCREASE. THE AMOUNT OF POLYMERIZATION INHIBITORS CAN BE REDUCED OR NO POLYMERIZATION INHIBITORS HAVE TO BE USED AT ALL. TEMPERATURE CONTROL OF CONTAINERS, PIPE CONDUITS AND PIPELINES, CARRYING THE AQUEOUS ACRYLIC ACID SOLUTION IS NOT NECESSARY, AS THE SOLIDIFICATION POINT OF THE AQUEOUS ACRYLIC ACID SOLUTION IS LOWER THAN THE ONE OF THE ANHYDROUS ACRYLIC ACID.
MYPI2010000522A 2007-08-10 2008-08-08 Production of water-absorbent resins MY148460A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07114212 2007-08-10

Publications (1)

Publication Number Publication Date
MY148460A true MY148460A (en) 2013-04-30

Family

ID=39831801

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2010000522A MY148460A (en) 2007-08-10 2008-08-08 Production of water-absorbent resins

Country Status (8)

Country Link
US (1) US20100197877A1 (en)
EP (1) EP2178926B1 (en)
JP (1) JP5599310B2 (en)
CN (1) CN101778869A (en)
AT (1) ATE529449T1 (en)
BR (1) BRPI0814746A2 (en)
MY (1) MY148460A (en)
WO (1) WO2009021921A1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101959538A (en) * 2008-03-05 2011-01-26 巴斯夫欧洲公司 Process for preparing superabsorbents
WO2011042404A1 (en) * 2009-10-09 2011-04-14 Basf Se Use of heating steam condensate for producing water-absorbent polymer particles
DE102010000706A1 (en) * 2010-01-06 2010-10-14 Basf Se Conveying a stream of liquid containing methacrylic monomer using conveying pump through pipe line, in which an aperture is introduced at a position located in conveying direction of stream of liquid behind and/or above the conveying pump
US8785583B2 (en) 2011-06-03 2014-07-22 Basf Se Process for continuously producing water-absorbing polymer particles
JP6053762B2 (en) * 2011-06-03 2016-12-27 ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ Continuous production method of water-absorbing polymer particles
WO2012164081A1 (en) * 2011-06-03 2012-12-06 Basf Se Method for continuous production of water-absorbent polymer particles
US9320822B2 (en) 2012-02-17 2016-04-26 Nippon Shokubai Co., Ltd. Polyacrylic acid (salt) water-absorbing resin and manufacturing method therefor
EP2912110B1 (en) * 2012-10-24 2018-12-05 Evonik Degussa GmbH Scent- and colour-stable water-absorbing composition
CN104527431A (en) * 2014-12-04 2015-04-22 苏州欣航微电子有限公司 Waterproof and heat insulation type LCD panel of electric vehicle
CN106318353A (en) * 2015-06-15 2017-01-11 中石化石油工程技术服务有限公司 Gel plugging agent and preparation method thereof
CN107793529B (en) * 2016-09-05 2020-11-13 中国石油化工股份有限公司 Polymer for high-temperature-resistant acidizing and fracturing and preparation method thereof
KR102075735B1 (en) * 2017-02-16 2020-02-10 주식회사 엘지화학 Method of preparation for super absorbent polymer
MX2022011910A (en) 2020-03-26 2022-10-18 Basf Se Process and plant for manufacturing aqueous polyacrylamide gels.
CN115850894B (en) * 2022-12-30 2023-12-08 苏州星日化学有限公司 Method for inhibiting degradation of poly (methyl) acrylic ester solution in flash evaporation process

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2931553A1 (en) * 1979-08-03 1981-02-26 Basf Ag METHOD FOR STABILIZING MONOMERIC ACRYLIC ACID ESTERS AGAINST EARLY POLYMERIZATION
US5130471A (en) * 1991-09-06 1992-07-14 Heiman John C Stabilized acrylic monomer compositions
JP3349768B2 (en) * 1992-06-10 2002-11-25 株式会社日本触媒 Method and composition for producing acrylate polymer
EP1026145B1 (en) * 1999-01-29 2003-04-02 Mitsubishi Chemical Corporation Method for purifying acrylic acid
DE19923389A1 (en) * 1999-05-21 2000-08-17 Basf Ag Process for the storage and/or transportation of pure acrylic acid comprises an acrylic acid concentration of 5 wt.% and less than 2 wt.% impurities
US6927268B2 (en) * 2000-06-21 2005-08-09 Nippon Shokubai Co., Ltd. Production process for water-absorbent resin
US6504056B2 (en) * 2001-05-01 2003-01-07 Basf Aktiengesellschaft Transport and/or storage of acrylic acid
CN1278070C (en) * 2001-12-03 2006-10-04 三菱化学株式会社 Pipeline transportation method for easily polymerizable liquid
US6867269B2 (en) * 2001-12-19 2005-03-15 Nippon Shokubai Co., Ltd. Water-absorbent resin and production process therefor
JP3905781B2 (en) * 2002-03-20 2007-04-18 株式会社日本触媒 Method for producing polyacrylic acid
DE10220494A1 (en) * 2002-05-07 2003-11-20 Basf Ag Process for the preparation of an aqueous alkali acrylate solution

Also Published As

Publication number Publication date
JP5599310B2 (en) 2014-10-01
JP2010535921A (en) 2010-11-25
ATE529449T1 (en) 2011-11-15
BRPI0814746A2 (en) 2015-03-03
WO2009021921A1 (en) 2009-02-19
EP2178926A1 (en) 2010-04-28
CN101778869A (en) 2010-07-14
US20100197877A1 (en) 2010-08-05
EP2178926B1 (en) 2011-10-19

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